Gas ring or burner



S. J. W. DAVIDSON.

GAS RING 0R BURNER. APPLICATION FILED MAR.29, 1920.

1,375,572, Patented Apr. 19, 1921.

I, 1 -72 m I -21 T Q j 15 i Q0 1 15:]. 8

A them? carin SYDNEY JAMES WALLACE DAVIDSON, OF AUCKLAND, NEW ZEALAND.

GAS RING on BURNER.

7 Specification of Letters Patent. Patented A111; 19, 1921.

Application filed. March 29, 1920. Serial No. 369,733.

T 0 all whom it may concern Be it known that I, SYDNEY'JAMES WAL- LACE DAVIDSON, a citizen of the Dominion of New Zealand, and residing at Scarborough Terrace, Parnell, Auckland, in the Provincial District of Auckland, a subject of the King of Great Britain and Ireland, have invented certain newand useful Improvements in Gas Rings or Burners, of which the following is a specification.

This invention relates to means employed in generating heat from spirit oil such as petrol, gasolene, kerosene, benzolin and the like.

The object of the invention is to provide an improved device, capable of being used either as a gas ring or as a burner on a stove, griller or other heating apparatus.

According to the invention the device comprises a body with an outwardly and upwardly sloping flange, around the upper edge of which is a wall.

A central tube projects upward through the body and is surrounded by a loose ring having an internal flange around its upper edge and formed with equally spaced cross grooves in its lower edge.

The ring is recessed lnto the body, and a loose cap havinga central inverted cone projecting downward from the under surface and formed with equally spaced cross grooves in its lower edge, is recessed in said.

A? circular recess is provided in the body at thebottom of the sloping flangeand in said recess a correspondingly shaped tube isplaced, the latter having two connections passing downward through the body.

From one of said connections a hollow conductor leads to a nipple holder, the nippleof which is directed upward beneath the tube passing through the body, the other of said tubes being connected to a fuel supply wire of a hollow wire system. i 1

The inlet connection of the circular tube is preferably'packed with wire bound asbestos, cord or the like.

The invention will be more particularly described with reference to the accompanying drawing, in which Figure 1 is a sectional elevation of the device, and

Fig. 2 a plan view of same, with the ring and cap removed, while Fig. 3 illustrates in perspective the circular tube and connections,

4 the wire bound asbestos core, Flg. '5 the ring which surrounds the central tube of the body, and

V Fig. 6 an'alternative shape for the wall around the sloping flange.

The body 1 is formed with a tube 2 passingupward through same, the internal diameter ofsaid tube preferably decreasing upward.

Surrounding said tube is a beveled ring 3 formed with an internal flange around its upper edge, and equally spaced cross grooves 5 in its lower edge. The ring 3 sits inside a vertical flange 6 on the body 1, so that the grooves 5 show slightly above the latter, while the flange 4 is recessed to take a beveled cap 7 On the under surface of the cap 7 is an inverted cone 8 which is located centrally over the tube 2, and in the lower edge of said cap are equally spaced cross grooves 9 which show above the upper edge of the ring 3. i

. The sloping flange 10 extends outward and upward from the body 1 and is surrounded by a wall ll'either vertical or con cave as shown.

. At the bottom of the flange 10 the circular tube 12 which serves as the main' generator of the device, is sunkin a recess 13 andfrom the tube 12 diametrically opposite threaded connections 14:, 15 pass downward through the body 1.

From the connection 1 1 a hollow conductor 16 leads to the nipple" holder 17,- the nipple 18 of which 18 directed upward and is located centrally below the tube 2. I

The other connection 15 is connected with a fuel supply wire 19 preferably fitted with" a control cook 20.

The connection 15 is'packed with the wire bound asbestos core 21.

"The device is provided with-legs 22 extend upward sufficiently to provide rests 23 for a utensil such as a kettle, or the like.

When used as a burner on a stove or the like, the legs 22 are dispensed with.

In use and with the control cook 20 open, the liquid fuel under pressure, is directed by the wire 19 and connection 15 to the tube or main generator 12. I

The effect of inserting the core 21 in the connection 15 is that no body of liquid fuel enters the generator 12, the fuel entering the latter in the form of vapor. From the main generator 12 the fuel passes by way ofthe applied temporarily until gas is generated.- The as generated enters the tube 2 from the,

nipp e 18 and is split up and deflected by the inverted cone 8, to the grooves 5 and 9 of the ring 3 and cap 7, whereupon it is ignited,

the resultant flame jets being directed by the flange 10 and wall 11 upward against the bottom of a utensil placed on the rests 23.

Owing to the close proximity of the tube 12 to the flame jets from the grooves 5 and9, the former .is heatedand generation of gas is set up therein as the fuel passes through said generator, generation continuing automatically until the fuel supply is cut oil.

The effect of the splitting up of the gas by the inverted cone 8 is that back firing of the device is prevented, also the wall 11 confines the flame jets to the limit of the utensil being heated.

As willbe observed the device with the exception of the rings 3 and cap 7 is made in one piece, and by disconnecting the connections 14:, 15 from the conductor 16 and wire 19, the generator 12 is readily removable for inspection or-replacement.

l/Vhat I claim and desire to secure by Letters Patent of the United States of Amer- 1ca 1s:-

1. A device for the purpose set forth, comprising a body portion with a central tube projecting vertically through same; a ring with cross grooves in its lower edge around the upper end of said'tube; acap with cross grooves in its lower edgeengaged on said ring; a sloping flange around said body; a circular generator removably seated at the bottom of said sloping flange; a gas pipe dependin directed nipple located centrally below said tube and in communication with said generator through said pipe; and a fuel supply for the generator.

2. A device for the purpose set forth comprising a body portion with a central tube projecting vertically through same; a ring with cross grooves in its lower edge aroun the upper end of said tube; a cap with cross grooves in its lower edge on said ring; a sloping flange with a wall at its top around said bodyportion; a-circular generator re from the generator, an upwardly movably seated at the bottom of said sloping flange; opposed extensions carried by the generator received in the body, and-a nipple connected with one of said extensions and arranged centrally below the central tube.

3. A device for the purpose set forth com prising a body portion with a central tube passing vertically therethrough; a ring with cross grooves in its lower edge around the upper end of said tube, a cap with cross grooves in its lower eclgeseated in said ring, and a conical deflector, carried by the cap projecting into the tube.

4. A device for the purpose set forth comprising a bodyportion with a central tube projecting vertically therethrough; a ring with cross grooves in its lower edge and an internal flange around its upper edge, sitting within a flange on said body portionqand around said tube; and a cap withcross grooves in its lower edge and an inverted cone on its under surface, recessed in said ring.

5. A device for the purpose set forth comprising a body, a ring with cross grooves in its lower edge and an internal flange around its upper edge and supported on said body, a cap with cross grooves in its lower edge and an inverted cone on its under surface and recessed in said ring.

. 6. A device for the purpose set forth comprising a body, a removable circular tube recessed therein; a burner surrounded by said tube; an outwardly and upwardly sloping flange with a wall at the top surrounding said generator, and hollow extensions can ried by the tube removablyv positioned through the body and constituting a fuel inlet to said tube and a gas outlet therefrom.

7. A device for the purpose set forth comprising a circular tube; a'burner surrounded by said tube, a fuel inlet connection for the tube, a core arranged in said connection to restrict-the flow of liquid therethrough, and

a gas outlet connection for said tube.

In testimony whereof I afiix' my signature in presence of two witnesses.

SYDNEY JAMES WALLACE DAVIDSON.

Witnesses ERNEST WILFRID BOYCE CAREY, MYRA MARGARET BALDWIN. 

